.el-dropdown-menu {
    transform-origin: center top;
    padding: 0;
    background-color: #fff;
    border-radius: 4px;
}
.el-dropdown-menu__item {
    font-size: 14px;
    list-style: none;
    line-height: 36px;
    padding: 0 20px;
    margin: 0;
    color: #606266;
    cursor: pointer;
    outline: none;
    white-space: nowrap;
}
.el-popper[x-placement^=bottom] .popper__arrow {
    top: -6px;
    left: 50%;
    margin-right: 3px;
    border-top-width: 0;
    border-bottom-color: #ebeef5;
}
.el-popper .popper__arrow {
    border-width: 6px;
    filter: drop-shadow(0 2px 12px rgba(0,0,0,.03));
}
.el-popper .popper__arrow, .el-popper .popper__arrow:after {
    position: absolute;
    display: block;
    width: 0;
    height: 0;
    border-color: transparent;
    border-style: solid;
}
.el-popper .popper__arrow, .el-popper .popper__arrow:after {
    position: absolute;
    display: block;
    width: 0;
    height: 0;
    border-color: transparent;
    border-style: solid;
    top: 1px;
    margin-left: -6px;
    border-width: 6px;
    border-top-width: 0;
    border-bottom-color: #fff;
    content: " ";
}
